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15-Bit ECC Key Broken on Quantum Hardware Wins Q-Day Prize

15-Bit ECC Key Broken on Quantum Hardware Wins Q-Day Prize

Curator's Take

This milestone represents the first public demonstration of breaking elliptic curve cryptography on actual quantum hardware, marking a concrete step toward the theoretical threat quantum computers pose to current internet security. While 15 bits is still far from the 256-bit keys protecting real Bitcoin wallets and financial systems, this achievement on publicly accessible quantum hardware shows that Shor's algorithm for breaking cryptography has moved from pure theory to experimental reality. The breakthrough highlights the urgent need for post-quantum cryptography deployment, as each advance in quantum hardware brings us closer to the day when current encryption standards will become vulnerable. This represents a significant proof-of-concept that validates decades of warnings about quantum computers eventually threatening the cryptographic foundations of our digital economy.

— Mark Eatherly

Summary

Insider Brief PRESS RELEASE — Project Eleven today awarded the Q-Day Prize, a one Bitcoin bounty, to Giancarlo Lelli for breaking a 15-bit elliptic curve key on a publicly accessible quantum computer. The result is the largest public demonstration to date of the attack class that threatens Bitcoin, Ethereum, and over $2.5 trillion in ECC-secured digital […]